[openstreetmap/openstreetmap-website] Use red heart in donate attribution (PR #6601)

[Roman Deev]

### Description

In most fonts, the current heart is monochrome. As noted in #6517, the Make a Donation button is hard to find. This is one way to make it more visible.

### How has this been tested?

<img width="490" height="136" alt="Снимок экрана 2025-12-09 в 00 23 27" src="https://github.com/user-attachments/assets/b6abfc79-95fb-4408-8679-56084e32ce1f" />
<img width="490" height="136" alt="Снимок экрана 2025-12-09 в 00 23 05" src="https://github.com/user-attachments/assets/f99a747b-3eff-48c0-aaf9-d13837fc1a55" />


You can view, comment on, or merge this pull request online at:

  https://github.com/openstreetmap/openstreetmap-website/pull/6601

-- Commit Summary --

  * use red heart in donate attribution

-- File Changes --

    M app/assets/javascripts/leaflet.map.js (2)

-- Patch Links --

https://github.com/openstreetmap/openstreetmap-website/pull/6601.patch
https://github.com/openstreetmap/openstreetmap-website/pull/6601.diff

-- 
Reply to this email directly or view it on GitHub:
https://github.com/openstreetmap/openstreetmap-website/pull/6601
You are receiving this because you are subscribed to this thread.

Message ID: <openstreetmap/openstreetmap-website/pull/6601 at github.com>
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://lists.openstreetmap.org/pipermail/rails-dev/attachments/20251208/71f1cd00/attachment-0001.htm>